NTSB investigations: Lycoming IO-540 series, CO

23 cases on aircraft whose registry engine model is Lycoming IO-540 series. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Cases per year

19812026
NTSB investigations: Lycoming IO-540 series, CO per year, 1981–2026: 23 cases
19812
19851
19921
19961
19981
20001
20011
20051
20082
20091
20102
20112
20132
20141
20181
20211
20231
20251

Latest cases

Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
  WHERE c.\"eventStateOrRegion\" = 'CO' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41530', '41585'))
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB CEN25LA398Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-60-601P · Del Norte, COThe loss of directional control during landing roll due to a flat tire.Sep 27, 2025 · N3635A · Substantial damageNTSB CEN23FA285Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-60-601P · Burlington, COThe pilot’s visual flight rules flight into instrument meteorological conditions, which resulted in a loss of control in flight and subsequent impact with terrain.Jul 6, 2023 · N100PB · DestroyedNTSB CEN22LA065Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-24-250 · Delta, COFuel starvation resulting in a loss of engine power.Dec 8, 2021 · N543AS · Substantial damageNTSB CEN18LA348Accident · No injuriesLimited investigationFinal reportPiper PA32R · Falcon, COThe pilot's decision to depart with an inoperative left magneto, which resulted in degraded climb performance in high-density altitude conditions and a subsequent emergency landing.Aug 23, 2018 · N2880W · Substantial damageNTSB CEN14CA318Accident · No injuriesData collectionFinal reportMeyer Geoffrey A Goat · Wolcott, COThe failure of an oil line leading to the oil pressure transducer which resulted in oil starvation and subsequent loss of engine power.Jun 16, 2014 · N987SL · Substantial damageNTSB CEN13CA435Accident · No injuriesData collectionFinal reportCessna 182S · Steamboat Springs, COThe pilot's delay in reacting to the adverse wind conditions.Jul 24, 2013 · N5467C · Substantial damageNTSB CEN13FA182Accident · Minor injuriesField investigationFinal reportAero Commander 500B · Broomfield, COLoss of engine power due to fuel exhaustion. Contributing to the accident was the failure of the fuel gauge to indicate the actual amount of fuel on board the airplane and the design of the airplane's fuel system, which precluded a visual confirmation of the…Mar 1, 2013 · N93AA · Substantial damageNTSB CEN11CA492Accident · No injuriesData collectionFinal reportCessna 182S · Meeker, COThe pilot's inadvertent flight into a downdraft, which resulted in an in-flight collision with trees.Jul 19, 2011 · N314FR · Substantial damageNTSB CEN11CA325Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Golden, COThe pilot’s decision to operate the helicopter at a high density altitude near terrain, which resulted in a settling with power condition.May 8, 2011 · N921JM · Substantial damageNTSB CEN10LA487Accident · No injuriesLimited investigationFinal reportShpakow Thomas SA 750 · Brighton, COThe radio-controlled airplane operator’s decision to maneuver his airplane outside of the designated operating area, resulting in a collision with a bi-plane. Contributing to the accident was the lack of a formally designated spotter.Aug 14, 2010 · N28KT · Substantial damageNTSB CEN10FA162Accident · No injuriesField investigationFinal reportMaule M-6-235 · Bennett, COThe pilot’s failure to maintain clearance from a utility line while maneuvering.Jan 30, 2010 · N7613X · Substantial damageNTSB CEN09CA264Accident · No injuriesData collectionFinal reportCessna 182T · Rangely, COThe pilot's failure to maintain directional control while landing with a crosswind.Apr 22, 2009 · N345TJ · Substantial damageNTSB DFW08FA233Accident · 2 fatalField investigationFinal reportPiper Aerostar PA-60-602P · Kremmling, COThe pilot’s failure to maintain aircraft control, resulting in an aerodynamic stall and spin.Sep 19, 2008 · N97TS · DestroyedNTSB DEN08FA141Accident · 4 fatalField investigationFinal reportCessna 182T · Georgia Pass, COThe pilot's failure to maintain aircraft control after inadvertantly encountering instrument meteorological conditions. Contributing to the accident were the pilot's failure to obtain a weather brief and the severe weather conditions.Aug 15, 2008 · N487TC · DestroyedNTSB DEN05FA066Accident · 1 fatalField investigationFinal reportPiper PA-32RT-300 · Broomfield, COthe pilot's failure to maintain aircraft control during landing. Contributing factor's included the quartering tailwind, and the pilot's inadequate in-flight decision making.Apr 7, 2005 · N3015L · DestroyedNTSB DEN01LA043Accident · No injuriesLimited investigationFinal reportMaule M-7-235C · Durango, COfailure by the pilot to maintain directional control of the aircraft during landing roll. A factor was the pilot's lack of experience in aircraft make and model.Jan 19, 2001 · N246SV · Substantial damageNTSB DEN00LA158Accident · No injuriesLimited investigationFinal reportMaule MX-7-235 · Broomfield, COthe pilot's failure to maintain directional control during landing roll. A contributing factor was the crosswind.Aug 29, 2000 · N111KD · Substantial damageNTSB DEN99LA026Accident · No injuriesLimited investigationFinal reportPiper PA-46-350P · Granby, COThe in-flight encounter with clear air turbulence during descent.Dec 15, 1998 · N9255B · Substantial damageNTSB FTW96LA369Accident · No injuriesLimited investigationFinal reportPiper PA-32R-300 · Salida, COtotal failure of the induction air control linkage (bolt), which allowed the alternate air door to close and starve the engine of air.Sep 2, 1996 · N7640F · Substantial damageNTSB DEN92LA065Accident · Minor injuriesLimited investigationFinal reportPiper PA-32RT-300 · Leadville, COThe pilot's failure to compensate for wind conditions and maintain directional control. Factors included: the pilot allowing the airplane to lift off prematurely, and gusty crosswinds.Jun 30, 1992 · N109RH · DestroyedNTSB DEN85FA214Accident · Serious injuriesField investigationFinal reportPiper PA-60-600 · Denver, COPilot in command stated that he waited aprx 90 seconds after a B-727 departed on rwy 8R due to possible wake turbulence. Plt continued to state that he used a short field takeoff procedure to climb above the flt path of the B-727. He stated that during…Aug 11, 1985 · N3643R · DestroyedNTSB DEN81FTE47Accident · No injuriesClosedBellanca DW1 · Loveland, COJun 26, 1981 · N8802B · Substantial damageNTSB DEN81FTE16Accident · Serious injuriesClosedBellanca 17-31 · Englwood, COJan 19, 1981 · N245MB · Substantial damage